D. Clawson
发表
C. Airriess,
D. Clawson,
Christopher Airriess,
1994
.
D. Clawson,
2008,
Economic Botany.
D. Clawson,
1987
.
D. Clawson,
Raymond E. Crist,
1982
.
D. Clawson,
1984
.
D. R. Hoy,
D. Clawson,
1979
.
D. Clawson,
1996
.
D. Clawson,
C. Hoff,
1952
.
C. Airriess,
D. Clawson,
Christopher Airriess,
1991
.
D. Clawson,
David L Clawson,
2004
.
D. Clawson,
1998
.